.An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one has the greater range? (assume no air resistance) a. 25 degrees b. 65 degrees c. Same for both d. none of the above

.An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one has the greater range? (assume no air resistance) a. 25 degrees b. 65 degrees c. Same for both d. none of the above

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter4: The Origin Of Modern Astronomy

Section: Chapter Questions

Problem 9P: What is the orbital velocity of an Earth satellite 42,230 km from Earth’s center? How long does it...

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Question

1.An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one has the greater range? (assume no air resistance) a. 25 degrees b. 65 degrees c. Same for both d. none of the above 2.Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs 12 kg and her arm is .65 meters long. a. 0.38 N c. 1.23 N b. 0.55 N d. 1.66 N

Definition Definition Force on a body along the radial direction. Centripetal force is responsible for the circular motion of a body. The magnitude of centripetal force is given by F C = m v 2 r m = mass of the body in the circular motion v = tangential velocity of the body r = radius of the circular path

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